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[Help-bash] modifying files in place.

From: John Kearney
Subject: [Help-bash] modifying files in place.
Date: Fri, 31 May 2013 03:00:46 +0200
Hi all,
  so I recently came across a new construct (for me) to edit a file in place.
{ rm file && awk 'whatever' >file } <file

I'm just wondering how portable is it? This seems to be making use of OS/FS specific behavior.

Thanks



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